Hyoid Bone & Laynx

Question 1

What nerve contribute to hyoid bone movement?

Answer 1

Many! Cranial nerves 5, 7, 12 & ansa cervicalis

Question 2

What muscles contribute to superior in anterior movement of the hyoid bone?

Answer 2

Mylohyoid and anterior belly of digastric—cranial nerve five, geniohyoid, hyoglossus—cranial nerve seven.

Question 3

What muscles contribute to superior posterior hyoid bone movement?

Answer 3

Stylohyoid, posterior belly digastric cranial nerve seven

Question 4

What muscles contribute to inferior hyoid bone movement?

Answer 4

Omohyoid, sternohyoid ansa cervicalis C 1-3

Question 5

What is the ansa cervicalis?

Answer 5

Is part of the cervical plexus also known as a loop of nerves consisting of the first 4 cervical spinal nerves that innervate infrahyoid muscles

Question 6

How many nerves contribute to laryngeal movement?

Answer 6

Many! C1 of Ansa cervicalis via 12, AC 1-3, 9 & 10.

Question 7

What muscles contribute to superior laryngeal movement?

Answer 7

Thyrohyoid AC 1, Stylopharyngeus, CN 9

Palatopharyngeus CN 10

Question 8

What muscles contribute to inferior laryngeal movement?

Answer 8

Sternothyroid AC 1-3

Question 9

What do intrinsic laryngeal muscles do?

Answer 9

intrinsic laryngeal muscles move components of the larynx relative to one another

Question 10

What is the motor innervation for all intrinsic laryngeal muscles except cricothyroid?

Answer 10

Cranial nerve 10 recurrent laryngeal

Question 11

What is the motor innervation of cricothyroid?

Answer 11

Cranial nerve 10 superior laryngeal

Question 12

What cranial nerve provides laryngeal sensation to the glottis and above?

Answer 12

CNN 10 superior laryngeal

Question 13

What cranial nerve provides laryngeal sensation to the mucosa below the glottis?

Answer 13

Cranial nerve 10 recurrent laryngeal